COMSTOCK PARK, Mich. — Meteorologists all over the world use a wide variety of instruments to measure things like temperature, air pressure, humidity and a host of other variables. In Tuesday's ...

The M130 Mini Anemometer has been added to the M-Series of mini handheld environmental meters. The instrument measures air speed up to 55 mph (90 km/h) and temperature in a range of -4°~122°F ...

To calibrate the device, [Sergei] made a second hand-held unit that he could (presumably ... But the star of the show, that lets the anemometer spin effortlessly, is the sweet bearing that ...